127400481 has 18 divisors (see below), whose sum is σ = 199269798. Its totient is φ = 78399360.

The previous prime is 127400477. The next prime is 127400521. The reversal of 127400481 is 184004721.

It can be written as a sum of positive squares in 3 ways, for example, as 1040400 + 126360081 = 1020^2 + 11241^2 .

It is not a de Polignac number, because 127400481 - 2² = 127400477 is a prime.

It is a super-2 number, since 2×127400481² = 32461765118062722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127400401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 40360 + ... + 43401.

Almost surely, 2^127400481 is an apocalyptic number.

It is an amenable number.

127400481 is a deficient number, since it is larger than the sum of its proper divisors (71869317).

127400481 is a wasteful number, since it uses less digits than its factorization.

127400481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83793 (or 83777 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 127400481 is about 11287.1821549933. The cubic root of 127400481 is about 503.1803689485.

The spelling of 127400481 in words is "one hundred twenty-seven million, four hundred thousand, four hundred eighty-one".